JP2548597B2 - Joint structure of flat plate and true column - Google Patents
Joint structure of flat plate and true columnInfo
- Publication number
- JP2548597B2 JP2548597B2 JP63045748A JP4574888A JP2548597B2 JP 2548597 B2 JP2548597 B2 JP 2548597B2 JP 63045748 A JP63045748 A JP 63045748A JP 4574888 A JP4574888 A JP 4574888A JP 2548597 B2 JP2548597 B2 JP 2548597B2
- Authority
- JP
- Japan
- Prior art keywords
- flat plate
- true column
- true
- column
- joint structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Rod-Shaped Construction Members (AREA)
- Joining Of Building Structures In Genera (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は土木建築構造物、特に地下構造物における鉄
骨真柱と鉄筋コンクリートフラツトプレートとの接合構
造に係るものである。Description: TECHNICAL FIELD The present invention relates to a joint structure between a steel true column and a reinforced concrete flat plate in a civil engineering building structure, particularly an underground structure.
（従来の技術） 地下構造としては階高を低くし、掘削土量が少なくで
きるフラツトスラブ構造が適している。更にフラツトプ
レートはキヤピタルやドロツプパネルがないため、型枠
工事が簡単になるとともに、階高をより低くできる利点
を有する。(Prior art) As a subterranean structure, a flat slab structure that can reduce the floor height and reduce the amount of excavated soil is suitable. Further, since the flat plate does not have a capital or drop panel, it has advantages that the formwork can be simplified and the floor height can be lowered.
地下工法を合理化する一方法として、真柱を設置し、
同真柱に接合されるフラツトプレートを切梁代りに用
い、順次下層を構築する方法が考えられる。As a way to rationalize the underground construction method, installing a true pillar,
It is possible to construct a lower layer one by one by using a flat plate joined to the same true column instead of a truss.
（発明が解決しようとする課題） しかしながら真柱とフラツトプレートとの接合部分の
断面積が小さく、この接合部分で応力的に無理が生じ
る。(Problems to be Solved by the Invention) However, the cross-sectional area of the joint portion between the true column and the flat plate is small, and stress occurs at this joint portion.
本発明はこのような従来技術の有する問題点に鑑みて
提案されたもので、その目的とする処は、異種構造であ
る鉄骨真柱と鉄筋コンクリートフラツトプレートとの間
の応力伝達が円滑に行なわれるフラツトプレートと真柱
との接合構造を提供する点にある。The present invention has been proposed in view of the above problems of the prior art, and the object thereof is to smoothly transmit stress between a steel frame true column and a reinforced concrete flat plate which are different structures. The point is to provide a joint structure between the flat plate and the true column.
（課題を解決するための手段） 前記の目的を達成するため、本発明に係るフラツトプ
レートと真柱との接合構造は、鉄筋コンクリートフラツ
トプレートと鉄骨真柱との接合部において、同真柱の外
周に型鋼よりなる剪断補強材を溶接し、同剪断補強材を
前記フラツトプレート内に定着するとともに、同フラツ
トプレートのスラブ筋における前記真柱によつて中断さ
れる部分は同真柱に接合することなく、上下方向に曲成
してフラツトプレート内に定着して構成されている。(Means for Solving the Problems) In order to achieve the above object, the joint structure between the flat plate and the true column according to the present invention is the same as the true column at the joint between the reinforced concrete flat plate and the steel true column. Welding a shear reinforcement made of shaped steel on the outer periphery of the steel plate, fixing the shear reinforcement in the flat plate, and the portion of the slab muscle of the flat plate interrupted by the true column is the same true column. It is constructed by being bent in the vertical direction and fixed in the flat plate without being joined to.
（作 用） 本発明は前記したように構成されているので、鉛直荷
重及び水平荷重時におけるフラツトプレートの真柱周辺
に接する部分に生起する曲げ剪断力が、同真柱の外周に
溶接され、前記フラツトプレート内に定着された剪断補
強材に負担され、前記真柱及びフラツトプレート間の応
力の伝達が円滑に行なわれる。(Operation) Since the present invention is configured as described above, the bending shearing force generated in the portion of the flat plate contacting with the periphery of the true column at the time of vertical load and horizontal load is welded to the outer periphery of the true column. The shearing reinforcement fixed in the flat plate allows the stress to be smoothly transmitted between the true column and the flat plate.
（実施例） 以下本発明を図示の実施例について説明する。(Examples) The present invention will be described below with reference to illustrated examples.
（１）はＨ形鋼等より構成された鉄骨真柱で、所定位
置までの地盤の掘削が終了したのち、フラツトプレート
（２）との接合部外周に溝形鋼等で構成された剪断補強
材（３）が溶接される。(1) is a steel true column made of H-shaped steel, etc., and after the excavation of the ground to a predetermined position is completed, shearing made of grooved steel etc. on the outer periphery of the joint with the flat plate (2) The reinforcement (3) is welded.
この後、前記フラツトプレート（２）の上下スラブ筋
（4a）（4b）を配筋して同フラツトプレート（２）のコ
ンクリートを打設するが、スラブ筋（4a）（4b）におけ
る真柱（１）によつて中断される部分は夫々下方及び上
方に曲成してフラツトプレート（２）のコンクリート部
分に定着し、真柱（１）に接合しない。After this, the upper and lower slab reinforcements (4a) (4b) of the flat plate (2) are laid out and concrete of the flat plate (2) is placed, but the slab reinforcement (4a) (4b) The portions interrupted by the pillars (1) bend downward and upward, respectively, and are fixed to the concrete portion of the flat plate (2) and do not join the true pillars (1).
図示の実施例は前記したように構成されているので、
鉛直荷重及び水平荷重時におけるフラツトプレート
（２）の真柱（１）周辺部における曲げ、剪断力を剪断
補強材（３）に負担させることによつて、通常の梁を要
することなく、前記真柱（１）及びフラツトプレート
（２）間の応力伝達が円滑に行なわれる。Since the illustrated embodiment is configured as described above,
By bending and shearing the shear reinforcement (3) around the true column (1) of the flat plate (2) at the time of vertical load and horizontal load, the normal beam is not required. The stress is smoothly transmitted between the true column (1) and the flat plate (2).
なお地下構造の場合、通常周辺には地下外壁が存在す
ることにより、真柱（１）やフラツトプレート（２）が
負担する応力は比較的小さく、前記実施例に示す接合構
造を地下構造物に利用すると、極めて経済的である。In the case of an underground structure, since the outer wall is usually present in the surrounding area, the stress that the true pillar (1) and the flat plate (2) bear is relatively small. It is extremely economical to use.
また前記真柱（１）を利用し、フラツトプレート
（２）に切梁を兼用せしめて、順次上層より下層を掘削
してフラツトプレート（２）を構築していく逆打工法に
前記実施例が適用され、この際、梁を必要としないため
階高が低減され、型枠工事が簡略化され、工期が短縮さ
れ、工費が節減される。In addition, using the true pillar (1), the flat plate (2) is also used as a cross beam, and the flat plate (2) is constructed by sequentially excavating the lower layer from the upper layer. An example is applied, in which the floor height is reduced because no beams are required, the formwork construction is simplified, the construction period is shortened, and the construction cost is reduced.
（発明の効果） 本発明に係るフラツトプレートと真柱との接合構造は
前記したように、真柱の外周に、フラツトプレート内に
定着される型鋼よりなる剪断補強材を溶接することによ
つて、鉛直荷重及び水平荷重時にフラツトプレートの真
柱周辺部に生起する応力が負担され、通常の梁を要する
ことなくフラツトプレート及び真柱間の応力伝達が円滑
に行なわれ、構造的に信頼性の高い接合構造が構成され
る。(Effects of the Invention) As described above, the joining structure of the flat plate and the true column according to the present invention is to weld the shear reinforcing material made of the shape steel fixed in the flat plate to the outer periphery of the true column. Therefore, the stress generated around the true column of the flat plate during vertical load and horizontal load is borne, and the stress transmission between the flat plate and the true column is smoothly performed without the need for ordinary beams, and the structural A highly reliable joint structure is constructed.
また前記フラツトプレートのスラブ筋における前記真
柱によつて干渉、中断される部分は上下方向に曲成さ
れ、アンカー筋としてフラツトプレート内に定着される
ことによつて、スラブ筋を真柱に接合することなく配筋
することができ、施工が簡略化される。Further, the portion of the slab muscle of the flat plate that is interfered by and interrupted by the true column is bent in the vertical direction, and is anchored in the flat plate as an anchor line so that the slab muscle is a true column. Bars can be arranged without joining to, simplifying construction.
第１図及び第２図は夫々本発明に係るフラツトプレート
と真柱との接合構造の一実施例を示す縦断面図並に横断
平面図である。 （１）……真柱、（２）……フラツトプレート、（３）
……剪断補強材、（4a）（4b）……スラブ筋。FIG. 1 and FIG. 2 are respectively a longitudinal sectional view and a transverse plan view showing an embodiment of a joint structure of a flat plate and a true column according to the present invention. (1) …… Mast pillar, (2) …… Flat plate, (3)
…… Shear reinforcement, (4a) (4b) …… Slab muscle.
Claims (1)
真柱との接合部において、同真柱の外周に型鋼よりなる
剪断補強材を溶接し、同剪断補強材を前記フラツトプレ
ート内に定着するとともに、同フラツトプレートのスラ
ブ筋における前記真柱によつて中断される部分は同真柱
に接合することなく、上下方向に曲成してフラツトプレ
ート内に定着してなることを特徴とするフラツトプレー
トと真柱との接合構造。1. A joint between a reinforced concrete flat plate and a steel true column is welded to the outer periphery of the true column with a shear reinforcing material made of shaped steel, and the shear reinforcing material is fixed in the flat plate. A portion of the slab muscle of the flat plate, which is interrupted by the true column, is not joined to the true column but is bent in the vertical direction and fixed in the flat plate. A joint structure between a tot plate and a true pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63045748A JP2548597B2 (en) | 1988-03-01 | 1988-03-01 | Joint structure of flat plate and true column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63045748A JP2548597B2 (en) | 1988-03-01 | 1988-03-01 | Joint structure of flat plate and true column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01223252A JPH01223252A (en) | 1989-09-06 |
| JP2548597B2 true JP2548597B2 (en) | 1996-10-30 |
Family
ID=12727930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63045748A Expired - Lifetime JP2548597B2 (en) | 1988-03-01 | 1988-03-01 | Joint structure of flat plate and true column |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2548597B2 (en) |
-
1988
- 1988-03-01 JP JP63045748A patent/JP2548597B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01223252A (en) | 1989-09-06 |
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